| http://www.w3.org/ns/prov#value | - The challenge aimed to ??determine whether and how social media can be used to accomplish a realistic, time-sensitive, international law enforcement goal.?? With a $5,000 reward for the winners, the goal was to build a network of spotters and teammates for the simulated law enforcement search through social media in each of five cities including Washington D.C., New York City, London, Stockholm an
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